KROHN INDUSTRIES, INC. Safety Data Sheet Rhodium Plating Solution. SECTION 1: Identification. SECTION 2: Hazard identification. 1.1 Product identifier

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1 KROHN INDUSTRIES, INC. Safety Data Sheet SECTION 1: Identification 1.1 Product identifier Product name Brand Krohn 1.2 Other means of identification Start up Concentrate Ready to Use Replenisher Bath Concentrate Pen Plating Solution 1.4 Supplier's details Name Address Krohn Industries, Inc. 303 Veterans Blvd. Carlstadt, NJ USA Telephone Fax Emergency phone number(s) Chem Tel SECTION 2: Hazard identification 2.1 Classification of the substance or mixture GHS classification in accordance with OSHA (29 CFR ) - Skin corrosion/irritation (chapter 3.2), Cat. 1A 2.2 GHS label elements, including precautionary statements Pictogram Signal word Hazard statement(s) H314 Precautionary statement(s) P260 P280 Danger Causes severe skin burns and eye damage Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 1 of 7

2 P301+P330+P331 P303+P361+P353 P305+P351+P338 P501 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Dispose of contents/container to SECTION 3: Composition/information on ingredients 3.2 Mixtures Hazardous components 1. Sulfuric acid, rhodium(3+) salt (3:2) Concentration 1-99 % CAS no Sulfuric acid (<10%) Concentration > 1-5 % EC no CAS no Index no Skin corrosion/irritation (chapter 3.2), Cat. 1A H314 Causes severe skin burns and eye damage 3. Phosphoric acid liquid Concentration > 1-3 % EC no CAS no Index no Skin corrosion/irritation (chapter 3.2), Cat. 1B H314 Causes severe skin burns and eye damage SECTION 4: First-aid measures 4.1 Description of necessary first-aid measures If inhaled In case of skin contact In case of eye contact If swallowed If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. Wash off with soap and plenty of water. Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 2 of 7

3 4.2 Most important symptoms/effects, acute and delayed Causes serious eye damage. Causes skin irritation. SECTION 5: Fire-fighting measures 5.1 Suitable extinguishing media Product is not flammable. Use extinguishing media suitable for surrounding fire. 5.2 Specific hazards arising from the chemical If product is involved in fire Sulfur Oxides and Rhodium Oxides may be released. 5.3 Special protective actions for fire-fighters Wear self-contained breathing apparatus for firefighting and or fully protective impervious suit if necessary. SECTION 6: Accidental release measures 6.1 Personal precautions, protective equipment and emergency procedures Wear respiratory protection. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. For personal protection see section Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. 6.3 Methods and materials for containment and cleaning up Contain spillage, soak up with non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite) and transfer to a container for disposal according to local / national regulations (see section 13). Sweep up and shovel. Do not flush with water. Keep in suitable, closed containers for disposal. SECTION 7: Handling and storage 7.1 Precautions for safe handling Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. 7.2 Conditions for safe storage, including any incompatibilities Do not store near strong bases, strong oxidizing agents, reducing agents, and metal powders. SECTION 8: Exposure controls/personal protection 8.1 Control parameters 1. Sulfuric acid, rhodium(3+) salt (3:2) (CAS: ) TLV (Air): 1 mg/m3; USA (ACGIH) 2. Sulfuric acid (<10%) (CAS: EC: ) TLV (Air): 0.2 mg/m3 (T) (TWA); USA (ACGIH) 3. Phosphoric acid liquid (CAS: EC: ) TLV (Air): 1 mg/m3 (TWA) 3 mg/m3 (STEL) ; USA (ACGIH) 4. Phosphoric acid (CAS: ) PEL (Inhalation): 1 mg/m3 (OSHA) Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 3 of 7

4 OSHA Annotated Table Z-1, 5. Phosphoric acid (CAS: ) PEL (Inhalation): 1 mg/m3, (ST) 3 mg/m3 (Cal/OSHA) OSHA Annotated Table Z-1, 6. Phosphoric acid (CAS: ) REL (Inhalation): 1 mg/m3, (ST) 3 mg/m3 (NIOSH) OSHA Annotated Table Z-1, Individual protection measures, such as personal protective equipment (PPE) Eye/face protection Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with impervious protective gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Body protection Protective work clothing. Respiratory protection Avoid breathing vapours, mist or gas. Ensure adequate ventilation. SECTION 9: Physical and chemical properties Information on basic physical and chemical properties Appearance/form Red to amber colored liquid. Odor Acidic. Odor threshold ph 1 Melting point/freezing point Initial boiling point and boiling range Flash point Evaporation rate Flammability (solid, gas) Not Flammable Upper/lower flammability limits Upper/lower explosive limits Vapor pressure Vapor density Relative density Solubility(ies) Fully soluble in water. Partition coefficient: n-octanol/water Auto-ignition temperature None. Decomposition temperature Viscosity Explosive properties Oxidizing properties SECTION 10: Stability and reactivity Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 4 of 7

5 10.1 Reactivity No information known Chemical stability Stable under recommended storage conditions Possibility of hazardous reactions Reacts with bases, oxidizing agents, reducing agents Conditions to avoid No further relevant information available Incompatible materials Bases, oxidizing agents, reducing agents Hazardous decomposition products Sulfur oxides. Rhodium oxide. SECTION 11: Toxicological information Information on toxicological effects Skin corrosion/irritation Corrosive. May cause redness, pain, and severe burns. Serious eye damage/irritation Corrosive. May cause irritation and serious eye damage. Respiratory or skin sensitization Breathing vapors or mist can cause irritation to nose, throat, and upper respiratory tract. Germ cell mutagenicity Carcinogenicity Reproductive toxicity Summary of evaluation of the CMR properties STOT-single exposure STOT-repeated exposure SECTION 12: Ecological information Toxicity Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 5 of 7

6 Persistence and degradability Bioaccumulative potential Mobility in soil Results of PBT and vpvb assessment Not applicable. Other adverse effects SECTION 13: Disposal considerations Disposal of the product Consult state, local, and national regulations for proper disposal. Disposal of contaminated packaging Consult state, local, and national regulations for proper disposal. Sewage disposal Consult state, local, and national regulations for proper disposal. SECTION 14: Transport information DOT (US) UN Number: UN3264 Class: 8 Packing Group: III Proper Shipping Name: Corrosive liquid, acidic, inorganic, n.o.s. (Rhodium(III) sulfate, Sulfuric acid) Reportable quantity (RQ): No Marine pollutant: No Poison inhalation hazard: No IMDG UN Number: No Data. Class: Packing Group: EMS Number: Proper Shipping Name IATA UN Number: UN3264 Class: 8 Packing Group: III Proper Shipping Name: Corrosive liquid, acidic, inorganic, n.o.s. (Rhodium sulfate, Sulfuric acid) SECTION 15: Regulatory information 15.1 Safety, health and environmental regulations specific for the product in question Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 6 of 7

7 Massachusetts Right To Know Components Chemical name: Sulfuric acid New Jersey Right To Know Components Common name: SULFURIC ACID Pennsylvania Right To Know Components Chemical name: Sulfuric acid California Prop. 65 components Chemical name: Sulfuric acid (<10%) 03/14/ Cancer Massachusetts Right To Know Components Chemical name: Phosphoric acid CAS number: New Jersey Right To Know Components Common name: PHOSPHORIC ACID CAS number: SECTION 16: Other information 16.1 Further information/disclaimer This information is provided in good faith and is correct to the best of Krohn Industries knowledge as of the date hereof and is designed to assist our customers; however, Krohn makes no representation as to its completeness or accuracy. Our products are intended for sale to industrial and commercial customers. We require customers to inspect and test our products before use and to satisfy themselves as to suitability to their specific applications. Any use which Krohn customers or third parties make of this information, or any reliance on, or decisions made based upon it, are the responsibility of such customer or third party. Krohn Industries disclaims responsibility for damages, or liability, of any kind resulting from the use of the information. THERE ARE NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, INCLUDING THOSE OF MERCHANTABILITY OR FITNESS OR A PARTICULAR PURPOSE WITH RESPECT TO THIS INFORMATION OR TO THE PRODUCT IT DESCRIBES. IN NO EVENT SHALL KROHN BE LIABLE FOR SPECIAL INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Version: 1.1, Revision: 5/5/17, Supersedes: 1.0, Date of issue: , p. 7 of 7